PROBLEM TO BE SOLVED: To provide a composition for adjusting a hair shape that improves a hair touch feeling (softness, smoothness, setting feeling, gloss or the like) and suppresses hair damage, and forms a desired wave shape and the like with good lasting effect.SOLUTION: An adjuvant for adjusting hair shapes comprises a component (A): a compound represented by formula (1) [where each symbol is as described in the specifications] or salt thereof.SELECTED DRAWING: Figure 1【課題】本発明は、毛髪の手触り感（柔らかさ、すべり、まとまり感、ツヤ等）や毛髪のダメージを抑え、所望のウェーブ形状等を形成および持続効果に優れた毛髪形状調整用組成物を提供することを目的とする。【解決手段】成分（Ａ）：式（１）［式中、各記号は明細書に記載の通りである。］で示される化合物またはその塩を含有する毛髪形状調整用補助剤。【選択図】図１
